This stunning Seiko 6139-6005 Pogue chronograph has completed its stay in the ClockSavant watch spa and retreat. It is now running in top condition, accurate to within a few seconds a day across all positions and with high amplitude (degree of balance swing.) The Seiko lubricants used years ago were not nearly as robust as Swiss lubricants— they dry to sandpaper and wear-away the watch. Vintage Seiko’s need to be fully serviced to prevent damage from these dried lubricants. The customer who brought me this watch for full servicing was told it was running well by the seller— the truth was it barely ran. If you purchase a watch and the seller says “serviced”, verify what they meant by that. As you likely know by now, when a seller says “serviced” it means nothing without more information. They need to describe precisely what was performed as part of servicing. This is why I use the term “fully serviced,” describe in-detail what that means on the ClockSavant website, provide a 12 month warranty, and give customers private portal access to communicate with me and track the progress of servicing and a private cloud photo album showing the watch’s progress through servicing and its complete disassembly. They receive empirically measured performance results pre-and-post service. Full servicing cost time and money. A watchmaker prepared to do this well invests heavily in skills, tools, parts, machinery, and their integrity.